<template>
  <div class="uploadmain">
    <div class="upload-box">
      <el-upload
        v-model:file-list="fileList"
        :accept="fileType.join(',')"
        :action="uploadUrl"
        :before-upload="beforeUpload"
        :class="['upload', drag? 'no-border' : '']"
        :disabled="disabled"
        :drag="drag"
        :http-request="httpRequest"
        :limit="limit"
        :multiple="true"
        :on-error="uploadError"
        :on-exceed="handleExceed"
        :on-success="uploadSuccess"
        list-type="picture-card"
      >
        <div class="upload-empty">
          <slot name="empty">
            <Icon icon="ep:plus" />
            <!-- <span>请上传图片</span> -->
          </slot>
        </div>

        <template #file="{ file }">
          <img :src="file.url" class="upload-image" />
          <div class="upload-handle" @click.stop>
            <div class="handle-icon" @click="handlePictureCardPreview(file)">
              <Icon icon="ep:zoom-in" />
              <span>查看</span>
            </div>
            <div v-if="!disabled" class="handle-icon" @click="handleRemove(file)">
              <Icon icon="ep:delete" />
              <span>删除</span>
            </div>
          </div>
         
      <div  v-if="hasName" class="uploadmain" style="position: absolute;left: 0;bottom: 0;width: 100%;">
        <!-- <div class="uploadmains textbot"  style="width:100%;">图片{{}}名称*：</div> -->
        <div class="uploadmains">
          {{file.name}}
          <!-- <el-input
  style="width:100%;"  
          v-model="file.name"  
          placeholder="文件名称" -->
        <!-- /> -->
      </div> 
      </div>  
        </template>
      </el-upload>
      <div class="el-upload__tip">
        <slot name="tip"></slot>
      </div>
      <el-image-viewer
        v-if="imgViewVisible"
        :url-list="[viewImageUrl]"
        @close="imgViewVisible = false"
      />
      <div class="uploadmains" v-if="hasName">
      <div v-for="(file, index) in fileList"  style="width:9rem;margin-right: .3rem;margin-top:.2rem" class="uploadmain" :key="index">
        <div class="uploadmains"  style="width:100%;">图片{{index+1}}名称*：</div>
        <div class="uploadmains"><el-input
  style="width:100%;"  @blur="blurst()"
          v-model="file.name"
          autosize
          :rows="1"
            type="textarea"
          placeholder="文件名称"
        />


      </div> 
      </div>  </div>
    </div>
  </div>
</template>

<script lang="ts" setup>
import type { UploadFile, UploadProps, UploadUserFile } from 'element-plus'
import { ElNotification } from 'element-plus'

import { propTypes } from '@/utils/propTypes'
import { useUpload } from '@/components/UploadFile/src/useUpload'

defineOptions({ name: 'UploadImgs' })

const message = useMessage() // 消息弹窗

type FileTypes =
  | 'image/apng'
  | 'image/bmp'
  | 'image/gif'
  | 'image/jpeg'
  | 'image/pjpeg'
  | 'image/png'
  | 'image/svg+xml'
  | 'image/tiff'
  | 'image/webp'
  | 'image/x-icon'

const props = defineProps({
  modelValue: propTypes.oneOfType<string | string[]>([String, Array<String>]).isRequired,
  drag: propTypes.bool.def(true), // 是否支持拖拽上传 ==> 非必传（默认为 true）
  disabled: propTypes.bool.def(false), // 是否禁用上传组件 ==> 非必传（默认为 false）
  limit: propTypes.number.def(5), // 最大图片上传数 ==> 非必传（默认为 5张）
  fileSize: propTypes.number.def(50), // 图片大小限制 ==> 非必传（默认为 5M）
  fileType: propTypes.array.def(['image/jpeg', 'image/png', 'image/gif']), // 图片类型限制 ==> 非必传（默认为 ["image/jpeg", "image/png", "image/gif"]）
  height: propTypes.string.def('150px'), // 组件高度 ==> 非必传（默认为 150px）
  width: propTypes.string.def('150px'), // 组件宽度 ==> 非必传（默认为 150px）
  borderradius: propTypes.string.def('8px'), // 组件边框圆角 ==> 非必传（默认为 8px）
  hasName: propTypes.bool.def(false), // 是否支持输入图片名称 true）
  fileNames: propTypes.string.def('')
})

const { uploadUrl, httpRequest } = useUpload()

const fileList = ref<UploadUserFile[]>([])

/**
 * @description 文件上传之前判断
 * @param rawFile 上传的文件
 * */
const beforeUpload: UploadProps['beforeUpload'] = (rawFile) => {
  const imgSize = rawFile.size / 1024 / 1024 < props.fileSize
  const imgType = props.fileType
  if (!imgType.includes(rawFile.type as FileTypes))
    ElNotification({
      title: '温馨提示',
      message: '上传图片不符合所需的格式！',
      type: 'warning'
    })
  if (!imgSize)
    ElNotification({
      title: '温馨提示',
      message: `上传图片大小不能超过 ${props.fileSize}M！`,
      type: 'warning'
    })
  return imgType.includes(rawFile.type as FileTypes) && imgSize
}

onMounted(() => {
  
    if(props.fileNames){
       let jkd=props.fileNames.split(",");
       for (const key in jkd) {
        fileList.value[key].name=jkd[key]
       }
       
    }
})

// 图片上传成功
interface UploadEmits {
  (e: 'update:modelValue', value: string[],): void,
  (e: 'upokname', name: string[]),
  (e: 'uploadedfilenames', filenames: string[], value: any) // 新增事件用于发送文件名
}

const blurst = () => {
  emit('uploadedfilenames', fileList.value.map(file => file.name),fileList.value.map(file => file.url)) // 发送文件名到父组件
  
}

const emit = defineEmits<UploadEmits>()
const uploadSuccess: UploadProps['onSuccess'] = (res: any): void => {
  message.success('上传成功')
  console.log(res,"::");
  // 假设 fileList 是一个响应式的数据
  try {
    fileList.value = fileList.value.map(file => {
  const dotIndex = file.name.lastIndexOf('.');
  if (dotIndex!== -1) {
    file.name = file.name.slice(0, dotIndex);
  }
  return file;
});
  } catch (error) {
    
  }

fileList.value[fileList.value.length-1].url=res.data;
  console.log(JSON.stringify(fileList.value)+"<<<<<<>>>>>>>////")
  // if(props.hasName){
    emit('uploadedfilenames', fileList.value.map(file => file.name),fileList.value.map(file => file.url)) // 发送文件名到父组件
  // }
 
}

// 监听模型绑定值变动
watch(
  () => props.modelValue,
  (val: string | string[]) => {
    if (!val) {
      fileList.value = [] // fix：处理掉缓存，表单重置后上传组件的内容并没有重置
      return
    }
   
    fileList.value = [] // 保障数据为空
    
    try {
      let imgname= props.fileNames.split(","); 
    if(imgname){
      fileList.value.push(
   ...(val as string[]).map((url,inedxs) => ({ name: imgname[inedxs], url }))
    )
    }else{
      fileList.value.push(
   ...(val as string[]).map((url,inedx) => ({ name: url.substring(url.lastIndexOf('/') + 1), url }))
    )
       
    }
    } catch (error) {
      fileList.value.push(
   ...(val as string[]).map((url,inedx) => ({ name: url.substring(url.lastIndexOf('/') + 1), url }))
    )
    }
    
     
    
  },
  { immediate: true, deep: true }

)

// 删除图片
const handleRemove = (uploadFile: UploadFile) => {
  fileList.value = fileList.value.filter(
    (item) => item.url!!== uploadFile.url || item.name!!== uploadFile.name
  )
  emit(
    'update:modelValue',
    fileList.value.map((file) => file.url!)
  )
}

// 图片上传错误提示
const uploadError = () => {
  ElNotification({
    title: '温馨提示',
    message: '图片上传失败，请您重新上传！',
    type: 'error'
  })
}

// 文件数超出提示
const handleExceed = () => {
  ElNotification({
    title: '温馨提示',
    message: `当前最多只能上传 ${props.limit} 张图片，请移除后上传！`,
    type: 'warning'
  })
}

// 图片预览
const viewImageUrl = ref('')
const imgViewVisible = ref(false)
const handlePictureCardPreview: UploadProps['onPreview'] = (uploadFile) => {
  viewImageUrl.value = uploadFile.url!
  imgViewVisible.value = true
}

// 提取文件名（不带后缀）
function getFileBaseName(fileName: string) {
  const dotIndex = fileName.lastIndexOf('.')
  if (dotIndex!== -1) {
    return fileName.slice(0, dotIndex)
  }
  return fileName
}
</script>

<style lang="scss" scoped>
.is-error {
.upload {
    :deep(.el-upload--picture-card),
    :deep(.el-upload-dragger) {
      border: 1px dashed var(--el-color-danger)!important;

      &:hover {
        border-color: var(--el-color-primary)!important;
      }
    }
  }
}

:deep(.disabled) {
.el-upload--picture-card,
.el-upload-dragger {
    cursor: not-allowed;
    background: var(--el-disabled-bg-color)!important;
    border: 1px dashed var(--el-border-color-darker);

    &:hover {
      border-color: var(--el-border-color-darker)!important;
    }
  }
}

.upload-box {
.no-border {
    :deep(.el-upload--picture-card) {
      border: none!important;
    }
  }

  :deep(.upload) {
.el-upload-dragger {
      display: flex;
      align-items: center;
      justify-content: center;
      width: 100%;
      height: 100%;
      padding: 0;
      overflow: hidden;
      border: 1px dashed var(--el-border-color-darker);
      border-radius: v-bind(borderradius);

      &:hover {
        border: 1px dashed var(--el-color-primary);
      }
    }

  .el-upload-dragger.is-dragover {
      background-color: var(--el-color-primary-light-9);
      border: 2px dashed var(--el-color-primary)!important;
    }

  .el-upload-list__item,
  .el-upload--picture-card {
      width: v-bind(width);
      height: v-bind(height);
      background-color: transparent;
      border-radius: v-bind(borderradius);
    }

  .upload-image {
      width: 100%;
      height: 100%;
      object-fit: contain;
    }

  .upload-handle {
      position: absolute;
      top: 0;
      right: 0;
      display: flex;
      width: 100%;
      height: 100%;
      cursor: pointer;
      background: rgb(0 0 0 / 60%);
      opacity: 0;
      box-sizing: border-box;
      transition: var(--el-transition-duration-fast);
      align-items: center;
      justify-content: center;

   .handle-icon {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        padding: 0 6%;
        color: aliceblue;

      .el-icon {
          margin-bottom: 15%;
          font-size: 140%;
        }

        span {
          font-size: 100%;
        }
      }
    }

  .el-upload-list__item {
      &:hover {
     .upload-handle {
          opacity: 1;
        }
      }
    }

  .upload-empty {
      display: flex;
      flex-direction: column;
      align-items: center;
      font-size: 12px;
      line-height: 30px;
      color: var(--el-color-info);

    .el-icon {
        font-size: 28px;
        color: var(--el-text-color-secondary);
      }
    }
  }

.el-upload__tip {
    line-height: 15px;
    text-align: center;
  }
}

.uploadmain{
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: start;
}
.uploadmains{
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: start;
  flex-wrap: wrap;
}

.textbot{
  background: #f1f1f1;
    opacity: 0.8;
    color: black;
    font-weight: 700;
    font-size: .8rem;
}
</style>